# -*- coding: utf-8 -*-
"""
功能：圣诞树3
作者：cxf
日期：2021年12月22日
"""
import turtle as t
from turtle import *
import random as r
import time
n = 100.0
t.pensize(10)
speed("fastest")
screensize(bg='black')
left(90)
forward(3 * n)
color("orange", "yellow")
begin_fill()
left(126)
for i in range(5):
    forward(n / 5)
    right(144)
    forward(n / 5)
    left(72)
end_fill()
right(126)
def drawlight():
    if r.randint(0, 30) == 0:
        color('tomato')
        circle(6)
    elif r.randint(0, 30) == 1:
        color('orange')
        circle(3)
    else:
        linewidth = 5
        color('dark green')
color("dark green")
backward(n * 4.8)
def tree(d, s):
    if d <= 0: return
    forward(s)
    tree(d - 1, s * .8)
    right(120)
    tree(d - 3, s * .5)
    drawlight()
    right(120)
    tree(d - 3, s * .5)
    right(120)
    backward(s)
tree(15, n)
backward(n / 2)
for i in range(200):
    a = 200 - 400 * r.random()
    b = 10 - 20 * r.random()
    up()
    forward(b)
    left(90)
    forward(a)
    down()
    if r.randint(0, 1) == 0:
        color('tomato')
    else:
        color('wheat')
    circle(2)
    up()
    backward(a)
    right(90)
    backward(b)
t.color("dark red", "red")
t.write("Merry Christmas", align="center", font=("Comic Sans MS", 40, "bold"))
def drawsnow():
    t.ht()
    t.pensize(2)
    for i in range(200):
        t.pencolor("white")
        t.pu()
        t.setx(r.randint(-350, 350))
        t.sety(r.randint(-100, 350))
        t.pd()
        dens = 6
        snowsize = r.randint(1, 10)
        for j in range(dens):
            t.fd(int(snowsize))
            t.backward(int(snowsize))
            t.right(int(360 / dens))
drawsnow()
